Cheap Battery for the BMPCC

Hey,
I got a new cheap battery with charger from Ebay. It works great and one battery would probably keep the BMPCC going for 5 hours.
In the test I use my production camera for the time lapse and that thing eats at least three times as much current as the pocket.
Build quality is nice, it charges fast. Only bad thing so far is the handle for the screw in the plate, its a bit fiddley to get hold of so I just used a coin instead.